Using familiar camera tricks and scary shadows,
When a Stranger Calls puts well-adjusted high school track team member and babysitter Jill in an isolated house, then assaults her with howling wind, an intermittently working alarm system, heavy-breathing phone calls, and a black cat jumping out of corners. Some 83 minutes after its start, the film ends, with no point or development in evidence.
The stranger's eventual appearance doesn't even offer further insight into Jill or the film's point. An implacable and big-eared silhouette, he pursues his victims until he doesn't. The film climaxes a couple of times, including a nightmare sequence that seems designed to challenge Jill's sanity. But like most everything in When a Stranger Calls, this challenge is unsupported by anything else. And so it hangs, disconnected and clichéd.